Mark SullivanSenior Editor, PCWorld

Mark has been writing about networks - social and wireless - since 2005. Independent and outgoing, he enjoys travelling, wine, and skiing. His favorite book is "Atlas Shrugged" by Ayn Rand.

4G Phone Shootout: Verizon ThunderBolt Fastest by Far

We pitted the ThunderBolt, T-Mobile’s Galaxy S 4G, AT&T’s Atrix 4G, and Sprint’s EVO Shift 4G against one another in five cities to find out which among them earn the '4G' name. Two of them did.


Web Companies Should Practice 'Data Stewardship'

Maybe we need a new, longer-lasting way of thinking about protecting our data on (from) social networks

Seven Cool Apps at SXSW

The best apps at Austin's South by Southwest show are the ones that have obvious utility outside Nerdville. Here are seven we liked.


The Buzzwords of South by Southwest

One way to get a read on the major themes of a tech event is to listen to its buzzwords.


Microsoft Launches an Impressive IE9 at South by Southwest

The new browser uses hardware acceleration and HTML5 support to quickly render graphics and animation on Web pages.

Gowalla CEO: Location Apps Must Be About More than Games and Badges

‘Badges are bulls**t,’ Gowalla’s head acknowledged at a SXSW panel.

Microsoft Showcases Windows Phone 7 Apps at SXSW

Microsoft's mobile platform unveils the best and brightest of its own apps.


Microsoft Showcases Windows Phone 7 Apps at SXSW

Microsoft showed off some WP7 apps that take full advantage of the WP7 operating system.


4G Wireless Speed Tests: Which Is Really the Fastest?

AT&T, Sprint, T-Mobile, and Verizon: PCWorld’s exclusive performance tests reveal which 4G network delivers the fastest data speeds.


'Google Circles' Looms, But do Google's Nerds 'Get' Social?

Here at South by Southwest the rumors are flying -- and Google's not denying -- that a major new social networking service is in the works. But after Buzz, should we care?

IE9 Gets the Browser Out of the Way

Microsoft has dramatically simplified the browser experience with IE9, which will launch here at SXSW Monday.

SXSW is Bigger Than Texas This Week

It’s my first day of the conference, and it seems clear that SXSW Interactive has arrived as a major meeting place for the tech world.

ZTE V9 and V11 Android-Based Tablets

ZTE shoots for the low-budget Android market with its two new tablets.

Sprint Looks Poised to Enter an LTE Future

The carrier’s spectrum holdings, problems with WiMAX partner Clearwire and the limitations of WiMAX coupled with increasing 4G competition may all be pushing Sprint toward a major strategic shift.